I am looking at a 3.8 Compact 9mm for EDC. I am not concerned about feedback as far as caliber is concerned but, I am looking at whether it is worth getting my trigger and sights upgraded by SP or PRP. I have shot my friends XD9 with custom 4.5 trigger and it is a dream compared to my stock XD40SC trigger. Q. Is the trigger job worth the money for an EDc and occasional IDPA gun? Q. Are the factory sights ok, or should I get some Dawsons or TFO's?